package com.yms.juc.jmx;

import java.lang.management.ManagementFactory;
import java.lang.management.MonitorInfo;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
import java.util.concurrent.TimeUnit;

/**
 * @version : 1.0
 * @author: yangmingsong
 * @date: 2022/7/22-07-22-15:57
 * @description: spring5Test
 */
public class Test
{
    public static void main(String[] args) {
        new Thread(new TimeWaiting (), "TimeWaitingThread").start();
        new Thread(new Waiting(), "WaitingThread").start();
// 使用两个Blocked线程，一个获取锁成功，另一个被阻塞
        new Thread(new Blocked(), "BlockedThread-1").start();
        new Thread(new Blocked(), "BlockedThread-2").start();
    }
    // 该线程不断地进行睡眠
    static class TimeWaiting implements Runnable {
        @Override
        public void run() {
            while (true) {
                try {
                    TimeUnit.SECONDS.sleep(100);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }
    // 该线程在Waiting.class实例上等待
    static class Waiting implements Runnable {
        @Override
        public void run() {
            while (true) {
                synchronized (Waiting.class) {
                    try {
                        Waiting.class.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }
    // 该线程在Blocked.class实例上加锁后，不会释放该锁
    static class Blocked implements Runnable {
        @Override
        public void run() {
            synchronized (Blocked.class) {
                while (true) {
                    try {
                        TimeUnit.SECONDS.sleep(100);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }
}
